Across
- 3. is the upper chamber
- 5. is the section of the heart
- 7. are the largest type of blood cells
- 8. pump blood around the body
- 9. happens all the time in almost every cells in your body
- 12. use in exchange gas
- 13. is a waste substances that made in the liver
- 15. is produced by respiration in the body's cells
- 17. carry blood back to the heart
Down
- 1. are improtant for blood clotting
- 2. cann't happen with out enough oxygen
- 4. are also called erythrocytes
- 6. is the lower chamber
- 10. is mostly water with other dissolved substances
- 11. carry blood away from the heart
- 14. transport oxygen
- 16. is the process that we take gas into our body